Padme and Qui-Gon don't belong in ROTJ. Qui-Gon has no connection to Luke or the original trilogy. He would be just another out of place attempt to "connect the prequels-original trilogies". Padme appearing would be worse, IMHO. At least Qui-Gon could logically do it. But Padme has no way to appear, not having any force abilities. She would be out of place, and don't really see her adding anything to that scene. I would think it would also distract from the other point that Anakin made peace with Obi-Wan, the other major relationship in the prequels. The original trilogy was Luke's, moreso than Anakin's movies. Of course, I also want Sebastian Shaw back as Anakin, so maybe I'm a bit set on the originals.